Date: 09/04/2020

Number: 300

Roosting has started a few weeks ago (reported to me by a person living nearby that the monarchs began arriving a few weeks ago). More and more are accumulating at this site

My estimate of 300 is on the low side. There were several places they were gathering and still some flying around. I suspect the numbers increase daily.

The area is a wholesale flower grower, Walters Gardens. Lots of nectar sources on location. During the daytime the day before I reported the roost, I saw many in a field of butterfly bushes just to the south of the row of white pine trees.

The monarchs assemble at the gardens every year.

Wind was calm. Where they roost in a east-west row of white pines they can be sheltered from wind in any direction. Overnight low was mid-50s I think.

Zeeland Twp, MI

Latitude: 42.8 Longitude: -86

Observed by: Robert
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